High-tech 'carp' find chemical contaminants in Spanish harbor
                                
                                
                                    (Newser) -
                                    Robots will soon be patrolling the harbor of Gijon, Spain, and if all goes well, the local sea life won't notice a thing, reports the Financial Times. The pollution-detecting bots cost $30,000 each and are modeled after carp, complete with shiny scales and an undulating swimming motion. "We...